Mathematics
Measurement
Conceptual
9–10 yrs
Metric & Imperial Conversion
公制与英制换算
Description
Understand and use approximate equivalences between metric units and common imperial units (inches, pounds, pints)
Mastery Evidence
- State that 1 inch ≈ 2.5 cm and use this to estimate length in inches
- Know that 1 kg ≈ 2.2 pounds and estimate a person's weight in pounds
- Convert approximately between litres and pints (1 litre ≈ 1.75 pints)
Assessment Prompt
If your child hears that a baby weighs 7 pounds, can they give a rough idea of that in kilograms — using the approximate conversion they know?
Prerequisites 1
Converting measurement units (age 9+)
在估算英制单位的近似换算之前，必须先了解公制单位
Unlocks 1
Miles & Kilometres
